Humidifier



FIG. 1 is a front view of a humidifier bearing the design;

FIG. 2 is a back view thereof;

FIG. 3 is a top view thereof;

FIG. 4 is a bottom view thereof;

FIG. 5 is a right side view thereof;

FIG. 6 is a left side view thereof;

FIG. 7 is a top, front, right perspective view thereof; and,

FIG. 8 is a top, front, right perspective view thereof in an unassembled state.

The broken lines in the drawings form no part of the claimed design. 

CLAIM A new, original, ornamental design for a humidifier, as shown and described. 